Improvement in plows



G'. 3- OVERSHINER.

PLOW.

Patented May 30,1876.

Inventor Oak/MM,

mPErms. PH'OT ER WASHINGTON n c UNITED STATES .PATENT- OFFICE.

GIDEON J. OVERSHINER, SAN JOSE, CALIFORNIA.

IMPROVEMENT- IN PLOWS.

Specification forming part of Letters Patent No. 178,024, dated May 30,1876; application filed April 3,1876.

T 0 all whom it may concern 7 Be it known that I, GDJEON J. OJTERSHINER,of San J os, Santa Clara county, State of California, have invented anImprovement in Referring to the accompanying drawings for a morecomplete explanation of my invention, Figure 1 is a side elevation of myshare. Fig. 2 is a back view. Fig. 3 is a bottom view. Fig. 4is a frontview, showing the share separated from the mold-board.

c is the mold-board, and b is the share, of my plow.

Various devices have hitherto been employed to secure the share to themold-board in such a manner asto allowit to be removed among others theuse of dovetailed tongues and slots, either made in a line with thejointor, in some cases, transversely to it. These are open to the objectionsthat they easily become rusted, or otherwise rendered immovable by thewarping and changing of shape in the share when sharpened by hammeringit, so that the joints will no longer fit.

In my invention I fit the share to the moldboard with a plain joint, 0,and I provide two lugs, 61 and 0, upon the share, which fit into shallowrecesses provided for them upon the back of the mold-board a, andbetween it and the land-side F, and these, with an upwardprojecting lugor point, i, upon the share, serve to hold the parts in place, while thesingle hookbolt 9 draws all the parts firmly together.

' In the construction of my plowl make a block of metal, h, of theproper shape, and to v the front of this block the mold-board a isbolted, asshown. The land-side F is bolted to the side, and a recess, j,is made between the land-side and the lower part of h, which admits thelug c from the share. The moldboard has its lower outside edgethickened, so as to allow the recess is to be made for the reception ofthe lug d, which also projects from the share. The lower front corner ofthe moldboard is cut away on a bevel of about fortyfive degrees, and acorresponding projection, 71, is made upon the share, so that whenbrought together the lugs and projection will prevent the mold-board andshare from slipping upon each other when jointed together. In order tosecure the parts firmly, and at the same time render it easy to takethem apart, I use a hook, L, the point of which enters a hole, m, madein the upper part of the share, and so as to pass through the thickenedportion where the lug d is formed. The upper part of the rod, upon whichthe hook is formed, extends up on the inside of the moldboard, andpasses through a 1ug,-n, on the upper part of the mold-board. A nut, 0,upon the upper end of the rod is then turned down, and draws the twoparts moldboard and share-together, holding them firmly without theneedof any other fastening. This renders it easy to release the share at anytime for sharpening, and it can never be rusted or warped, so that itwill not easilyseparate or go together.

Having thus described my invention, what I claim, and desire, to secureby Letters Patent, is

The mold-board a and share I) of a plow, formed as shown, and having thelugs 61 and e, and corresponding recesses, in combination with thehook-rod L, entering a hole in the share, and provided with a nut, 0,.at its upper end, by which, when turned down upon the lug n, the partsare held together without other fastening, substantially as and for theV purpose herein described.

GIDEON J AOKSON OVERSHINER. Witnesses:

HENRY J. HASKELL, JAMES A.QULAYTON.

